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安 徽 农 业 大 学
毕 业 论 文
论文题目 钙对淹水胁迫下辣椒幼苗的生长影响 姓 名 丁儒 学 号 09105008 院 系 园艺学院 专 业 设施农业 指导教师 徐强 职 称 讲师
中国·合肥
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o 一 三 年 六 月
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安徽农业大学学士学位论文（设计）开题报告
课题来源 课题名称 钙对淹水胁迫下辣椒幼苗的生长影响 辣椒技术体系项目 学生姓名 丁儒 专业 职称 设施农业 学号 09105008 指导教师姓名 徐强 讲师 研究内容 通篇主要讲述Ca2+对淹水胁迫下辣椒幼苗的影响，钙是植物生长过程中所必须的矿物质离子同时也是植物细胞内和偶联胞外信号的第二信使。因此研究钙对淹水胁迫下辣椒幼苗的生长影响对农业生产有较大科研价值与实际意义。 研究计划 1) 2) 3) 4) 5) 本文主要研究钙对淹水胁迫下辣椒幼苗的生长影响； 通过研究淹水胁迫下钙浓度研究辣椒根系呼吸作用； 通过研究淹水胁迫下钙浓度大小来测量辣椒根系碳水化合物重量； 测定不同浓度钙对辣椒的株高、根系长度以及茎粗的影响； 综合数据利用计算机绘制简易图表。 指导教师意见 同意开题。 教研室意见 同意开题。 院系意见 主要领导签名： 年 月 日
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目 录
摘要········································································5 引言···································································5 1 淹水胁迫对植物的生长影响······································6
1.1 淹水对植物的影响·············································6 1.2 淹水对根的影响················································7
2淹水胁迫对植物的伤害机理········································7
2.1 淹水对光合作用的影响········································7 2.2 淹水胁迫下植物对水分代谢的影响······························7 2.3 淹水胁迫下激素平衡的改变······································7
3 钙对植物抗逆能力研究进展···········································7
3.1 钙对淹水胁迫下植物的光合作用影响····························7 3.2 钙对植物体内碳水化合物含量的影响···························8 3.3 钙作为植物信号传导的第二信使的作用·························8
4 不同浓度钙离子对辣椒幼苗的影响···································8
4.1 4.2
实验材料···························································8 实验材料的培养···················································8
4.3 需要测定的项目及测定方法······································8 4.3.1 辣椒完成试验后的各项生长指标测定·······················9 4.3.2 测定植物叶片叶绿素含量····································9 4.4 结果与分析·························································9 4.4.1 不同浓度钙对淹水胁迫下辣椒幼苗干重和鲜重影响·······9
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4.4.2 不同浓度钙浸种与叶面喷施钙对淹水辣椒幼苗株高、根长
及茎粗的影响的对比······················································9
4.4.3 不同浓度钙对辣椒叶绿素含量的影响······················10
5 钙对淹水胁迫辣椒幼苗的生长以及植物碳水化合物含量的影响··········································································10
5.1 实验步骤··························································10 5.2 测定项目及测定方法·············································10 5.2.1 淹水胁迫下根系生长状况测定······························10 5.2.2 植株植株的鲜重和干重的测定······························11 5.2.3 淹水胁迫0、3、6、9、12d后，用手持式叶绿素仪进行测
定··········································································11
5.3 结果与分析························································11 5.3.1 淹水胁迫下根系生长状况···································11 5.3.2 Ca2+对淹水胁迫下辣椒幼苗鲜重及干重的影响···········11 5.3.3 随着时间的变化钙对辣椒叶绿素含量的影响··············12
6 总结与结论·····························································12 参考文献··································································13 致谢·······································································14
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钙对淹水胁迫下辣椒幼苗的生长影响
作者：丁儒 指导教师：徐强
（安徽农业大学园艺学院，合肥230036）
摘要：在自然环境条件下，因地理位和气候环境不同而会出现一些积水区域，这些区域常会因为雨水过多而对植物造成一些危害并影响植株的正常生长和发育，因而也影响到了农作物的产量表现。因此提高植物在淹水胁迫下的抗涝性对农业生产会有突出意义。
通篇主要讲述Ca2+对淹水胁迫下辣椒幼苗的影响，钙是植物生长过程中所必须的矿物质离子同时也是植物细胞内和偶联胞外信号的第二信使。因此研究钙对淹水胁迫下辣椒幼苗的生长影响对农业生产有较大科研价值与实际意义。
本文主要使用市面够得的辣椒为题材进行实验研究；研究发现Ca2+对淹水胁迫下的辣椒幼苗生长影响具有两面性，在一定范围内Ca2+浓度越高辣椒生长受负面影响越小，当超过一定标准后则成负面效应。实验结果表明钙减轻淹水对辣椒幼苗的伤害的最佳浓度是10
mmol/L。
英文摘要：
Different geographic location and climate environment under natural
environmental conditions, there will be some ponding area，These areas often because of too much rain on plants caused some damage and affect the normal growth and development of plants, which also affected the crop yield performance.Plants under waterlogging stress waterlogging on agricultural production will have outstanding significance.
Throughout focuses Ca2 + on the pepper seedlings under waterlogging stress，Calcium is a mineral ions are necessary in the process of plant growth within the plant cells and the coupling of extracellular signals to the second messenger.Study the impact of calcium on the growth of pepper seedlings under waterlogging stress on agricultural production greater scientific value and practical significance.
Main use commercially enough peppers to the theme of the experimental study; study found that Ca2 + the flooding stress pepper seedlings Growth has two sides, within a certain range Ca2 + concentration the higher the pepper growth negatively affected the smaller, when more than a certain standardafter a negative effect. Experimental results show that calcium to reduce flood damage to the pepper seedlings the best concentration of 10 mmol / L.
关键词：钙；淹水胁迫；辣椒幼苗；呼吸作用；碳水化合物 引言
辣椒在植物学上分类属于茄科辣椒属，其含有丰富的营养和维生素，辣椒中维生素C含量远高于其它果蔬类。又因其风味独特深受中国人喜爱，在中国人的菜盘中随处可见。辣